AnswersBiology - SC3209 ICThe Peripheral Nervous SystemQuestion 7
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The Peripheral Nervous System

Question 7 • Biology - SC3209 IC

How does a motor neuron work when a mosquito is seen on an arm?

Answer
A
It receives stimuli information from the skin and sends it to the brain where it is processed.
B
It receives processed information from the brain, causing the muscles of the arm and hands to remove the mosquito from the arm.
C
It processes information from the stimuli receiver and makes the brain aware that there is a mosquito on the arm.
D
It makes the arm numb from the effect of the mosquito bite.

Explanation

A motor neuron carries signals from the brain or spinal cord to muscles. After the brain processes information about the mosquito, motor neurons signal the arm and hand muscles to move and brush it away; receiving information from the skin is the job of sensory neurons.

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